queryImage() takes an `int*`; compiler is warning about the
signed<->unsigned pointer mismatch.
Fixes: 0db36caa19 "egl/wayland: Add a fallback when fourcc
query isn't supported"
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>